EP1239269A1 - Sound measuring method and device allowing for auditory sense characteristics - Google Patents

Sound measuring method and device allowing for auditory sense characteristics Download PDF

Info

Publication number
EP1239269A1
EP1239269A1 EP01917639A EP01917639A EP1239269A1 EP 1239269 A1 EP1239269 A1 EP 1239269A1 EP 01917639 A EP01917639 A EP 01917639A EP 01917639 A EP01917639 A EP 01917639A EP 1239269 A1 EP1239269 A1 EP 1239269A1
Authority
EP
European Patent Office
Prior art keywords
hearing
sound
individual
measurement
sounds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01917639A
Other languages
German (de)
French (fr)
Other versions
EP1239269A4 (en
Inventor
Kenji Kurakata
Yasuo Kuchinomachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
National Institute of Advanced Industrial Science and Technology AIST
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Institute of Advanced Industrial Science and Technology AIST filed Critical National Institute of Advanced Industrial Science and Technology AIST
Publication of EP1239269A1 publication Critical patent/EP1239269A1/en
Publication of EP1239269A4 publication Critical patent/EP1239269A4/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means

Definitions

  • This invention relates to a method and apparatus for measuring sound that takes into consideration age-based and individual hearing characteristics.
  • Figure 4 shows an example of an apparatus for measuring sound pressure level predetermined in the Japanese method of evaluating sound.
  • Reference numeral 1 denotes a microphone, 2 a level adjustment circuit, 3 a frequency correction circuit, 4 a squaring circuit, 5 an integration circuit, 6 a leveling circuit, and 7 an indicator.
  • the microphone 1 converts measured sound pressure to an electrical signal
  • the level adjustment circuit 2 changes the gain of the signal input from the microphone 1
  • the frequency correction circuit 3 is a circuit that applies to a measured sound pressure signal P a frequency weighting that simulates the hearing characteristics, as described above, such as for example a circuit that has the A-weighting characteristic of Figure 3.
  • the squaring circuit 4 squares the A-weighting characteristic-corrected sound pressure PA
  • the integration circuit 5 is a circuit for smoothing the squared sound pressure signal PA 2 .
  • the root-mean-square of the sound pressure of the smoothed signal is converted to a logarithmic value (dB value), which is displayed by the indicator 7.
  • dB value logarithmic value
  • Typical evaluation quantities are listed in Table 1 of JIS Z8731.
  • A-weighting characteristic sound pressure level LpA is expressed as 10 log 10 PA 2 /P0 2 (here, for the reference sound pressure P0, 20 ⁇ Pa is used, which is close to the sound pressure of the minimum sound that can be heard by a young person with sound hearing).
  • the measurement value of a sound subjected to A-weighting characteristic sound pressure level hearing correction or the like, or calculated loudness value corresponds well to the loudness of a sound actually perceived by a person. However, this is only the case when the subject is a young person with normal hearing. Moreover, when hearing characteristics are altered by hearing impairments or aging, there is never a good correspondence with the audible loudness.
  • Figure 5 shows a typical example of aging-based changes in audibility.
  • horizontal axis values represent time and vertical axis values represent relative amplitude.
  • the sound of the upper half of Figure 5(a) is an example of the sound of a large bus with many low-frequency components, corrected using a conventional A-weighting characteristic correction circuit
  • the sound of the upper half of Figure 5(b) is an example of the sound of a sawing machine containing many high-frequency "screaming sound" components, also corrected using a conventional A-weighting characteristic correction circuit.
  • These are simulations of the sounds a young person with sound hearing hears .
  • the lower halves of Figures 5(a) and 5(b) are simulations of the sounds an aged person hears.
  • these sounds are not always audible to aged people whose hearing characteristics have changed, or to people with impaired hearing.
  • measurements taken with measuring devices (sound level meters) that use existing A-weighting characteristic correction circuits are based on the hearing characteristics (A-weighting characteristic) of young people, it is impossible to accurately measure such differences in the loudness of sounds as perceived by aged people or people with impaired hearing. There is therefore a limit with respect to an evaluation of the loudness of sounds that takes into consideration the hearing characteristics of people with hearing impairments.
  • An object of this invention is to provide a method and apparatus for measuring sound that takes age-based and individual hearing characteristics into consideration and handles these hearing characteristics.
  • the present invention provides a method and apparatus for measuring sound corresponding to the hearing characteristics of a predetermined age, comprising reading out from a memory hearing characteristic data by age group, and using the hearing characteristics for the predetermined age to correct input sounds.
  • the present invention also provides a method and apparatus for measuring sound corresponding to individual hearing characteristics, comprising measuring individual hearing characteristics, calculating a correction value for reference hearing characteristics and using the correction value to correct input sounds.
  • the measurement apparatus of this invention includes one provided with selection means that can freely select hearing characteristic data by age group and individual hearing characteristic data.
  • this invention measures input sounds that are corrected based on hearing characteristic data by age group or individual hearing characteristic data, thereby making it possible to accurately measure sounds corresponding to these hearing characteristics.
  • FIG. 1 is a block diagram showing an example of a sound measurement apparatus according to the present invention.
  • a sound measurement section A includes a sound input means 11, a measurement value calculation means 12 and a memory 13 in which are stored age-based hearing characteristic data. The output of the measurement value calculation means 12 is displayed by a display means.
  • a hearing characteristics measurement section B includes an individual hearing characteristics measurement means 15, an individual correction value calculation means 16 and a memory 17 in which are stored individual hearing characteristic data.
  • Reference numeral 18 denotes a data- selection signal-input switching section that selects one of select age-based hearing characteristic data for correction values and calculated individual hearing characteristic data and inputs the selected one to the signal from the sound input means.
  • the measurement value calculation means 12 weights signals output from the sound input means 11 based on age-based hearing characteristic data stored in the memory 13 or individual hearing characteristic data stored in the memory 17, obtained with the individual correction value calculation means 16, and calculates the measurement value.
  • the sound measurement section A is incorporated instead of audibility correction such as A-weighting characteristics and the like. This makes it possible to display the level of sounds subjected to audibility correction by age group. In the case of young people with sound hearing, there is conformity with A-weighting characteristic based audibility correction.
  • the sound input means 11 is usually a microphone, it can be a means that suitably reproduces recorded sound signals and inputs the electrical signals, even if the sounds are not directly input by a microphone.
  • Input signals are converted to digital signals by an A/D converter.
  • the following processing is described with reference to the processing of a digitized signal, but in terms of principle, the equivalent processing can also be done using an analogue circuit.
  • Age-based hearing characteristic data are weighting coefficients (correction values) for each frequency and sound pressure level stored by age group in the memory 13 as measured sound correction values.
  • Figure 2 shows an example of age-based hearing characteristic data for people in their seventies.
  • horizontal axis values represent input sound frequency
  • vertical axis values represent correction level
  • values in the graph represent input sound pressure level.
  • the display means 14 displays measurement results (dB) of calculated sounds with an analogue meter or as a numerical value or the like.
  • a sound is input via the sound input means 11 such as a microphone or the like.
  • Input sounds are delivered to the measurement value calculation means 12, which calculates the loudness of the sound.
  • a sound measurement value that matches the hearing characteristics of the target age is calculated by referring to the age-based hearing characteristic data in the memory 13. The result is output via the display means 14.
  • the numerical value (dB) displayed on the display means 14 is, for example, zero or lower, it can be judged as "inaudible.” As a result, there is no need for the complex procedure of having a large number of aged people or people with impaired hearing actually listen to the sound to determine whether or not they can hear it.
  • the hearing characteristics measurement section B is used to measure the hearing characteristics of target individuals.
  • the level of a sound that matches an individual characteristic can be displayedbyutilizing the data as a correction characteristic.
  • the individual hearing characteristics measurement means 15 calculates data corresponding to age-based hearing characteristic data (the characteristics of Figure 2, for example), and these data are stored in the memory 17.
  • the data thus measured are processed by the individual correction value calculation means 16, and the individual hearing characteristics data are stored in the memory 17.
  • the switching section 18 switches, whereby in accordance with the selected signal, hearing characteristic data for a specific individual are input to the measurement value calculation means 12. Following that, a measurement value based on that individual's hearing characteristics is calculated and the result is output via the display means 14.
  • the embodiment of the measurement apparatus shown in Figure 1 is provided with a sound measurement section A and a hearing characteristics measurement section B , and for the correction value for the object concerned, by using the switching section 18 to select calculated individual hearing characteristic data instead of using age-based hearing characteristic data, it is possible to measure sounds in more detail. Also, the sound measurement section A and hearing characteristics measurement section B can of course be provided as separate apparatuses.
  • the measurement apparatus of the present invention to measure target sounds and voices makes it possible to determine whether or not they are audible to aged people or people with impaired hearing. As a result, there is no need for the complex procedure of having a large number of aged people or people with impaired hearing actually listen to the sounds to determine whether or not they are audible.
  • the measurement apparatus of the present invention to measure traffic noise and other environmental noises, and sounds emitted by industrial products, makes it possible to estimate how loud sounds seem to aged people and people with impaired hearing. As a result, when designing devices and instruments, this clarifies which frequency components should be eliminated to reduce noise, thereby providing efficient noise control guidelines.
  • hearing characteristics measurement sections in addition to measurements based on average hearing characteristics of aged people and people with impaired hearing incorporated in the apparatus as "age-based hearing characteristic data” makes it possible, when measuring sounds in spaces utilized by limited persons, such as individual residences, to control sounds and design warning sounds and the like that are more attuned to the hearing characteristics of the user.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Sounds input via a sound input means (11) are corrected in accordance with age-based hearing characteristic data read from a memory (13) or correction values for reference hearing characteristics for individual hearing characteristics measured by an individual hearing characteristics means (15) , and the sounds corresponding to the hearing characteristics are measured and displayed by a display means (14).

Description

    Technical Field
  • This invention relates to a method and apparatus for measuring sound that takes into consideration age-based and individual hearing characteristics.
    • Background Art
  • Human auditory sensitivity to sound differs according to frequency. Thus, in the measurement of sound, it has been proposed to measure sound pressure level to which is applied a frequency weighting that simulates the hearing characteristics. Starting from the 1930s, what is termed "A-weighting characteristic" frequency correction circuitry has been incorporated into sound level meter standards in America, Germany and other countries, one after another. In Japan, too, current sound evaluation methods prescribe evaluation using "sound level weighted with an A-weighting characteristic frequency correction circuit" (JIS Z8731 "Methods of measurement and description of A-weighted sound pressure level" and ISO 1996/1 "Sound - methods of describing and measuring environmental noise - Part 1: Basic quantities and how to obtain them").
  • The existing sound-level meter standards, JIS C1502 "Sound-level meters" and JIS C1505 "Precision sound-level meters," stipulate the incorporation of A-weighting characteristic (frequency characteristic of Figure 3) frequency correction circuitry and the ability to display the measurement values (sound level, dB). Also, in recent years, sound level meters (loudness meters) are being sold in Japan and overseas that not only correct the frequency characteristics, but also provide a more accurate display of the loudness of a sound (loudness), based on the ISO standard "ISO 532, Method B."
  • Figure 4 shows an example of an apparatus for measuring sound pressure level predetermined in the Japanese method of evaluating sound. Reference numeral 1 denotes a microphone, 2 a level adjustment circuit, 3 a frequency correction circuit, 4 a squaring circuit, 5 an integration circuit, 6 a leveling circuit, and 7 an indicator. The microphone 1 converts measured sound pressure to an electrical signal, the level adjustment circuit 2 changes the gain of the signal input from the microphone 1, and the frequency correction circuit 3 is a circuit that applies to a measured sound pressure signal P a frequency weighting that simulates the hearing characteristics, as described above, such as for example a circuit that has the A-weighting characteristic of Figure 3. The squaring circuit 4 squares the A-weighting characteristic-corrected sound pressure PA, and the integration circuit 5 is a circuit for smoothing the squared sound pressure signal PA2. In the leveling circuit 6, the root-mean-square of the sound pressure of the smoothed signal is converted to a logarithmic value (dB value), which is displayed by the indicator 7. Typical evaluation quantities are listed in Table 1 of JIS Z8731. For example, A-weighting characteristic sound pressure level LpA is expressed as 10 log10PA2/P02 (here, for the reference sound pressure P0, 20 µPa is used, which is close to the sound pressure of the minimum sound that can be heard by a young person with sound hearing).
  • The measurement value of a sound subjected to A-weighting characteristic sound pressure level hearing correction or the like, or calculated loudness value, corresponds well to the loudness of a sound actually perceived by a person. However, this is only the case when the subject is a young person with normal hearing. Moreover, when hearing characteristics are altered by hearing impairments or aging, there is never a good correspondence with the audible loudness.
  • Figure 5 shows a typical example of aging-based changes in audibility. In Figure 5, horizontal axis values represent time and vertical axis values represent relative amplitude. The sound of the upper half of Figure 5(a) is an example of the sound of a large bus with many low-frequency components, corrected using a conventional A-weighting characteristic correction circuit, and the sound of the upper half of Figure 5(b) is an example of the sound of a sawing machine containing many high-frequency "screaming sound" components, also corrected using a conventional A-weighting characteristic correction circuit. These are simulations of the sounds a young person with sound hearing hears . In contrast, the lower halves of Figures 5(a) and 5(b) are simulations of the sounds an aged person hears.
  • In the case of sounds with many low-frequency components such as the sounds of Figure 5(a), there is no major difference between what is heard by young people and aged people. However, in the case of sounds with many high-frequency components such as the sounds of Figure 5(b), there is a major difference between what is heard by young people and aged people. Thus, in accordance with differences in the types of sounds (the frequency components contained therein), there are sounds that aged people hear as small sounds owing to changes in their hearing characteristics and as louder sounds to the same extent as heard by young people (see Figure 5; the same problem arises with respect to people with impaired hearing).
  • Warning sounds emitted by equipment, along with spoken announcements in public spaces and other such speech sounds, have to be properly audible to everyone . However, these sounds are not always audible to aged people whose hearing characteristics have changed, or to people with impaired hearing. However, because measurements taken with measuring devices (sound level meters) that use existing A-weighting characteristic correction circuits are based on the hearing characteristics (A-weighting characteristic) of young people, it is impossible to accurately measure such differences in the loudness of sounds as perceived by aged people or people with impaired hearing. There is therefore a limit with respect to an evaluation of the loudness of sounds that takes into consideration the hearing characteristics of people with hearing impairments.
  • Also, there are of course individual differences in hearing characteristics, but because, as described above, measurements made using existing measuring devices are based on average characteristics of young people with sound hearing, it has not been possible to properly cope with individual differences in hearing characteristics.
  • An object of this invention is to provide a method and apparatus for measuring sound that takes age-based and individual hearing characteristics into consideration and handles these hearing characteristics.
    • Disclosure of the Invention
  • The present invention provides a method and apparatus for measuring sound corresponding to the hearing characteristics of a predetermined age, comprising reading out from a memory hearing characteristic data by age group, and using the hearing characteristics for the predetermined age to correct input sounds.
  • Since individual hearing characteristics differ, the present invention also provides a method and apparatus for measuring sound corresponding to individual hearing characteristics, comprising measuring individual hearing characteristics, calculating a correction value for reference hearing characteristics and using the correction value to correct input sounds.
  • The measurement apparatus of this invention includes one provided with selection means that can freely select hearing characteristic data by age group and individual hearing characteristic data.
  • As described in the foregoing, this invention measures input sounds that are corrected based on hearing characteristic data by age group or individual hearing characteristic data, thereby making it possible to accurately measure sounds corresponding to these hearing characteristics.
    • Brief Explanation of the Drawings
  • Figure 1 is a block diagram showing an example of a sound measurement apparatus according to the present invention.
  • Figure 2 shows an example of hearing characteristic data by age group (70s), used in the present invention.
  • Figure 3 shows the frequency-weighted characteristics (correction value, A-weighting characteristic) of a sound level meter.
  • Figure 4 is a block diagram of a measurement apparatus illustrating a method for measuring sound level.
  • Figure 5 is for explaining changes in hearing caused by aging, in the case of a large bus with respect to Figure 5(a), and in the case of a sawing machine with respect to Figure 5(b).
    • Best Mode for Implementing the Invention
  • Figure 1 is a block diagram showing an example of a sound measurement apparatus according to the present invention. A sound measurement section A includes a sound input means 11, a measurement value calculation means 12 and a memory 13 in which are stored age-based hearing characteristic data. The output of the measurement value calculation means 12 is displayed by a display means. A hearing characteristics measurement section B includes an individual hearing characteristics measurement means 15, an individual correction value calculation means 16 and a memory 17 in which are stored individual hearing characteristic data. Reference numeral 18 denotes a data- selection signal-input switching section that selects one of select age-based hearing characteristic data for correction values and calculated individual hearing characteristic data and inputs the selected one to the signal from the sound input means.
  • The measurement value calculation means 12 weights signals output from the sound input means 11 based on age-based hearing characteristic data stored in the memory 13 or individual hearing characteristic data stored in the memory 17, obtained with the individual correction value calculation means 16, and calculates the measurement value.
    • (1) Measurements taking age-based hearing characteristics into consideration
  • To respond to normal changes in hearing characteristics that accompany aging, the sound measurement section A is incorporated instead of audibility correction such as A-weighting characteristics and the like. This makes it possible to display the level of sounds subjected to audibility correction by age group. In the case of young people with sound hearing, there is conformity with A-weighting characteristic based audibility correction.
  • While the sound input means 11 is usually a microphone, it can be a means that suitably reproduces recorded sound signals and inputs the electrical signals, even if the sounds are not directly input by a microphone. Input signals are converted to digital signals by an A/D converter. The following processing is described with reference to the processing of a digitized signal, but in terms of principle, the equivalent processing can also be done using an analogue circuit.
  • Age-based hearing characteristic data are weighting coefficients (correction values) for each frequency and sound pressure level stored by age group in the memory 13 as measured sound correction values. Figure 2 shows an example of age-based hearing characteristic data for people in their seventies. In Figure 2, horizontal axis values represent input sound frequency, vertical axis values represent correction level, and values in the graph represent input sound pressure level. The display means 14 displays measurement results (dB) of calculated sounds with an analogue meter or as a numerical value or the like.
  • Here, first a sound is input via the sound input means 11 such as a microphone or the like. Input sounds are delivered to the measurement value calculation means 12, which calculates the loudness of the sound. At this time, a sound measurement value that matches the hearing characteristics of the target age is calculated by referring to the age-based hearing characteristic data in the memory 13. The result is output via the display means 14.
  • If the numerical value (dB) displayed on the display means 14 is, for example, zero or lower, it can be judged as "inaudible." As a result, there is no need for the complex procedure of having a large number of aged people or people with impaired hearing actually listen to the sound to determine whether or not they can hear it.
    • (2) Measurements taking individual hearing characteristics into consideration
  • To obtain measurement values corresponding to individual hearing characteristics instead of using average data (for example, the correction values of Figure 2), the hearing characteristics measurement section B is used to measure the hearing characteristics of target individuals. The level of a sound that matches an individual characteristic can be displayedbyutilizing the data as a correction characteristic.
  • Via headphones or the like, sounds having various frequencies and sound pressures are presented to a subject by the individual hearing characteristics measurement means 15. And, a determination is obtained as to whether it can be heard or not, and how loud it is heard. The result of that determination is used as a basis for estimating the subject's hearing characteristics. Based on the individual measurement results of the hearing characteristics measurement means 15, the individual correction value calculation means 16 calculates data corresponding to age-based hearing characteristic data (the characteristics of Figure 2, for example), and these data are stored in the memory 17.
  • The data thus measured are processed by the individual correction value calculation means 16, and the individual hearing characteristics data are stored in the memory 17. The switching section 18 switches, whereby in accordance with the selected signal, hearing characteristic data for a specific individual are input to the measurement value calculation means 12. Following that, a measurement value based on that individual's hearing characteristics is calculated and the result is output via the display means 14.
  • The embodiment of the measurement apparatus shown in Figure 1 is provided with a sound measurement section A and a hearing characteristics measurement section B, and for the correction value for the object concerned, by using the switching section 18 to select calculated individual hearing characteristic data instead of using age-based hearing characteristic data, it is possible to measure sounds in more detail. Also, the sound measurement section A and hearing characteristics measurement section B can of course be provided as separate apparatuses.
    • Industrial Applicability (i) It is possible to determine audibility by hearing-impaired persons.
  • Using the measurement apparatus of the present invention to measure target sounds and voices makes it possible to determine whether or not they are audible to aged people or people with impaired hearing. As a result, there is no need for the complex procedure of having a large number of aged people or people with impaired hearing actually listen to the sounds to determine whether or not they are audible.
  • With respect also to designing the sound characteristics of warning sounds and announcements, using the measurement apparatus of the present invention to measure those sounds makes it possible to positively confirm whether they are audible to aged people and people with impaired hearing. As a result, it is possible to determine the appropriate audibility at the design stage, before the on-site introduction of the warning sound or announcement equipment, enabling efficient product design.
    • (ii) It is possible to make measurement of sound loudness that takes into consideration people with hearing impairments.
  • Using the measurement apparatus of the present invention to measure traffic noise and other environmental noises, and sounds emitted by industrial products, makes it possible to estimate how loud sounds seem to aged people and people with impaired hearing. As a result, when designing devices and instruments, this clarifies which frequency components should be eliminated to reduce noise, thereby providing efficient noise control guidelines.
    • (iii) It is possible to make measurement adapted to individual hearing characteristics
  • Using the "hearing characteristics measurement sections" of the present invention in addition to measurements based on average hearing characteristics of aged people and people with impaired hearing incorporated in the apparatus as "age-based hearing characteristic data" makes it possible, when measuring sounds in spaces utilized by limited persons, such as individual residences, to control sounds and design warning sounds and the like that are more attuned to the hearing characteristics of the user.

Claims (5)

  1. A method of measuring sound that takes hearing characteristics into consideration, characterized by measuring sounds corresponding to hearing characteristics of a predetermined age by inputting sounds via a sound input means, reading age-based hearing characteristic data from a memory and correcting input sounds in accordance with hearing characteristic data for the predetermined age.
  2. A method of measuring sound that takes hearing characteristics into consideration, characterized by measuring sounds corresponding to the individual hearing characteristics by measuring individual hearing characteristics, calculating correction values for reference hearing characteristics and using said correction values to correct sounds input via a sound input means.
  3. A sound measurement apparatus that takes hearing characteristics into consideration, characterized by comprising
    a sound input means (11),
    a memory (13) in which age-based hearing characteristic data are stored,
    a measurement value calculation means (12) that corrects sounds input via said sound input means in accordance with the age-based hearing characteristic data stored in said memory, and
    a display means (14) that displays calculated values output by said measurement value calculation means.
  4. A sound measurement apparatus that takes hearing characteristics into consideration, characterized by comprising
    a sound input means (11),
    an individual hearing characteristics measurement means (15),
    an individual correction value calculation means (16) that calculates correction values for correcting individual hearing characteristics based on measurement values of said individual hearing characteristics measurement means,
    an individual hearing characteristic data memory (17) in which said correction values are stored,
    a measurement value calculation means (12) that corrects sounds measured via said sound input means in accordance with individual hearing characteristics data stored in said memory, and
    a display means (14) that displays calculated values output by said measurement value calculation means.
  5. A sound measurement apparatus that takes hearing characteristics into consideration, characterized by comprising
    a sound input means (11),
    a memory (13) in which age-based hearing characteristic data are stored,
    an individual hearing characteristics measurement means (15),
    an individual correction value calculation means (16) that calculates correction values for correcting individual hearing characteristics based on measurement values of said individual hearing characteristics measurement means,
    an individual hearing characteristic data memory (17) in which said correction values are stored,
    a means (18) of selecting said age-based hearing characteristic data and individual hearing characteristic data,
    a measurement value calculation means (12) that corrects sounds measured via a sound input means in accordance with selected said age-based hearing characteristic data or said individual hearing characteristic data, and
    a display means (14) that displays calculated values output by said measurement value calculation means.
EP01917639A 2000-08-29 2001-03-29 Sound measuring method and device allowing for auditory sense characteristics Withdrawn EP1239269A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000258769 2000-08-29
JP2000258769A JP3448586B2 (en) 2000-08-29 2000-08-29 Sound measurement method and system considering hearing impairment
PCT/JP2001/002678 WO2002018889A1 (en) 2000-08-29 2001-03-29 Sound measuring method and device allowing for auditory sense characteristics

Publications (2)

Publication Number Publication Date
EP1239269A1 true EP1239269A1 (en) 2002-09-11
EP1239269A4 EP1239269A4 (en) 2007-12-19

Family

ID=18747024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01917639A Withdrawn EP1239269A4 (en) 2000-08-29 2001-03-29 Sound measuring method and device allowing for auditory sense characteristics

Country Status (4)

Country Link
US (1) US6829939B2 (en)
EP (1) EP1239269A4 (en)
JP (1) JP3448586B2 (en)
WO (1) WO2002018889A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1898672A1 (en) * 2006-09-07 2008-03-12 Siemens Audiologische Technik GmbH Method for adapting a hearing device using a morphometric characteristic of the hearing device support
EP1933591A1 (en) * 2006-12-12 2008-06-18 GEERS Hörakustik AG & Co. KG Method for determining individual hearing ability
WO2008156774A1 (en) * 2007-06-19 2008-12-24 Dolby Laboratories Licensing Corporation Loudness measurement with spectral modifications
US9685924B2 (en) 2006-04-27 2017-06-20 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9705461B1 (en) 2004-10-26 2017-07-11 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101164937B1 (en) 2003-05-28 2012-07-12 돌비 레버러토리즈 라이쎈싱 코오포레이션 Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal
US8199933B2 (en) 2004-10-26 2012-06-12 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
CN101410892B (en) 2006-04-04 2012-08-08 杜比实验室特许公司 Audio signal loudness measurement and modification in the mdct domain
TWI517562B (en) 2006-04-04 2016-01-11 杜比實驗室特許公司 Method, apparatus, and computer program for scaling the overall perceived loudness of a multichannel audio signal by a desired amount
JP4940308B2 (en) 2006-10-20 2012-05-30 ドルビー ラボラトリーズ ライセンシング コーポレイション Audio dynamics processing using reset
US8521314B2 (en) 2006-11-01 2013-08-27 Dolby Laboratories Licensing Corporation Hierarchical control path with constraints for audio dynamics processing
EP2101645A2 (en) * 2006-12-13 2009-09-23 Phonak AG Providing hearing health care services by means of a home entertainment device
US8396574B2 (en) 2007-07-13 2013-03-12 Dolby Laboratories Licensing Corporation Audio processing using auditory scene analysis and spectral skewness
JP5313528B2 (en) * 2008-03-18 2013-10-09 リオン株式会社 Hearing aid signal processing method
US8375459B2 (en) * 2009-03-25 2013-02-12 International Business Machines Corporation Frequency based age determination
DE102009029367B4 (en) * 2009-09-11 2012-01-12 Dietmar Ruwisch Method and device for analyzing and adjusting the acoustic properties of a hands-free car kit
JP2012223509A (en) * 2011-04-22 2012-11-15 Sharp Corp Stethoscopic sound analyzer, and stethoscopic sound analyzing program
JP6129469B2 (en) * 2011-11-14 2017-05-17 川上　福司 Precision sound level meter
JP5941009B2 (en) * 2013-03-29 2016-06-29 Ｎｅｃパーソナルコンピュータ株式会社 Noise analysis apparatus and method
WO2018088210A1 (en) * 2016-11-08 2018-05-17 ソニー株式会社 Information processing device and method, and program
US20200296523A1 (en) * 2017-09-26 2020-09-17 Cochlear Limited Acoustic spot identification
WO2019061323A1 (en) * 2017-09-29 2019-04-04 深圳传音通讯有限公司 Noise canceling method and terminal
WO2023161797A1 (en) * 2022-02-28 2023-08-31 Cochlear Limited Synchronized spectral analysis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335542A2 (en) * 1988-03-30 1989-10-04 3M Hearing Health Aktiebolag Auditory prosthesis with datalogging capability
US4947432A (en) * 1986-02-03 1990-08-07 Topholm & Westermann Aps Programmable hearing aid
WO1991008654A1 (en) * 1989-11-30 1991-06-13 Nha As Hearing aid
WO1999048323A2 (en) * 1998-03-17 1999-09-23 Sonic Innovations, Inc. Hearing aid fitting system
JP2000209698A (en) * 1999-01-13 2000-07-28 Nec Saitama Ltd Sound correction device and mobile set with sound correction function

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4941179A (en) * 1988-04-27 1990-07-10 Gn Davavox A/S Method for the regulation of a hearing aid, a hearing aid and the use thereof
DE4227826C2 (en) * 1991-08-23 1999-07-22 Hitachi Ltd Digital processing device for acoustic signals
US5305420A (en) * 1991-09-25 1994-04-19 Nippon Hoso Kyokai Method and apparatus for hearing assistance with speech speed control function
JP2953238B2 (en) 1993-02-09 1999-09-27 日本電気株式会社 Sound quality subjective evaluation prediction method
JPH0728920A (en) * 1993-07-08 1995-01-31 Hitachi Ltd Automatic teller machine with hearing ability compensating function
DE19647399C1 (en) 1996-11-15 1998-07-02 Fraunhofer Ges Forschung Hearing-appropriate quality assessment of audio test signals
JPH10214023A (en) 1997-01-30 1998-08-11 Sekisui Chem Co Ltd Artificial experience device for hearing of aged person
JPH10267743A (en) 1997-03-25 1998-10-09 Fuji Xerox Co Ltd Tone quality evaluating device and its method
JPH1146394A (en) * 1997-07-25 1999-02-16 Sony Corp Information-processing device and method, recording medium and transmission medium there
US6311155B1 (en) * 2000-02-04 2001-10-30 Hearing Enhancement Company Llc Use of voice-to-remaining audio (VRA) in consumer applications

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4947432A (en) * 1986-02-03 1990-08-07 Topholm & Westermann Aps Programmable hearing aid
US4947432B1 (en) * 1986-02-03 1993-03-09 Programmable hearing aid
EP0335542A2 (en) * 1988-03-30 1989-10-04 3M Hearing Health Aktiebolag Auditory prosthesis with datalogging capability
WO1991008654A1 (en) * 1989-11-30 1991-06-13 Nha As Hearing aid
WO1999048323A2 (en) * 1998-03-17 1999-09-23 Sonic Innovations, Inc. Hearing aid fitting system
JP2000209698A (en) * 1999-01-13 2000-07-28 Nec Saitama Ltd Sound correction device and mobile set with sound correction function

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0218889A1 *

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10396739B2 (en) 2004-10-26 2019-08-27 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US9954506B2 (en) 2004-10-26 2018-04-24 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US9979366B2 (en) 2004-10-26 2018-05-22 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US11296668B2 (en) 2004-10-26 2022-04-05 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US10720898B2 (en) 2004-10-26 2020-07-21 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US10476459B2 (en) 2004-10-26 2019-11-12 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US10454439B2 (en) 2004-10-26 2019-10-22 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US9966916B2 (en) 2004-10-26 2018-05-08 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US10411668B2 (en) 2004-10-26 2019-09-10 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US9705461B1 (en) 2004-10-26 2017-07-11 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US10396738B2 (en) 2004-10-26 2019-08-27 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US10389319B2 (en) 2004-10-26 2019-08-20 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US9960743B2 (en) 2004-10-26 2018-05-01 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US10389320B2 (en) 2004-10-26 2019-08-20 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US10389321B2 (en) 2004-10-26 2019-08-20 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US10374565B2 (en) 2004-10-26 2019-08-06 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US10361671B2 (en) 2004-10-26 2019-07-23 Dolby Laboratories Licensing Corporation Methods and apparatus for adjusting a level of an audio signal
US9762196B2 (en) 2006-04-27 2017-09-12 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9780751B2 (en) 2006-04-27 2017-10-03 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9787269B2 (en) 2006-04-27 2017-10-10 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9768749B2 (en) 2006-04-27 2017-09-19 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9685924B2 (en) 2006-04-27 2017-06-20 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US11962279B2 (en) 2006-04-27 2024-04-16 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US10103700B2 (en) 2006-04-27 2018-10-16 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US10284159B2 (en) 2006-04-27 2019-05-07 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9787268B2 (en) 2006-04-27 2017-10-10 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US10523169B2 (en) 2006-04-27 2019-12-31 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9774309B2 (en) 2006-04-27 2017-09-26 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9768750B2 (en) 2006-04-27 2017-09-19 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US11711060B2 (en) 2006-04-27 2023-07-25 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9866191B2 (en) 2006-04-27 2018-01-09 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9742372B2 (en) 2006-04-27 2017-08-22 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US9698744B1 (en) 2006-04-27 2017-07-04 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US11362631B2 (en) 2006-04-27 2022-06-14 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US10833644B2 (en) 2006-04-27 2020-11-10 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
EP1898672A1 (en) * 2006-09-07 2008-03-12 Siemens Audiologische Technik GmbH Method for adapting a hearing device using a morphometric characteristic of the hearing device support
EP1933591A1 (en) * 2006-12-12 2008-06-18 GEERS Hörakustik AG & Co. KG Method for determining individual hearing ability
DE102006058522A1 (en) * 2006-12-12 2008-06-26 GEERS Hörakustik AG & Co. KG Method for determining individual hearing
CN101681618A (en) * 2007-06-19 2010-03-24 杜比实验室特许公司 loudness measurement with spectral modifications
AU2008266847B2 (en) * 2007-06-19 2011-06-02 Dolby Laboratories Licensing Corporation Loudness measurement with spectral modifications
WO2008156774A1 (en) * 2007-06-19 2008-12-24 Dolby Laboratories Licensing Corporation Loudness measurement with spectral modifications
CN101681618B (en) * 2007-06-19 2015-12-16 杜比实验室特许公司 Utilize the loudness measurement of spectral modifications

Also Published As

Publication number Publication date
US6829939B2 (en) 2004-12-14
US20020152815A1 (en) 2002-10-24
EP1239269A4 (en) 2007-12-19
JP3448586B2 (en) 2003-09-22
JP2002078096A (en) 2002-03-15
WO2002018889A1 (en) 2002-03-07

Similar Documents

Publication Publication Date Title
US6829939B2 (en) Method and apparatus for measuring sound that takes hearing characteristics into consideration
KR101721526B1 (en) Hearing test method and apparatus
Moller et al. Hearing at low and infrasonic frequencies
EP2640095B1 (en) Method for fitting a hearing aid device with active occlusion control to a user
JP4558044B2 (en) Equalization method and apparatus based on audiogram
EP1250829B1 (en) A method and a system for generation of a calibrated sound field
CN113938795B (en) Method and device for adjusting volume of earphone, earphone and storage medium
CN107645696A (en) One kind is uttered long and high-pitched sounds detection method and device
CN111128226A (en) Device and method for detecting noise sound quality
CN110840462A (en) Hearing-aid method for human ears based on earphone, computer readable storage medium and Bluetooth earphone
Stelmachowicz et al. Some theoretical considerations concerning the relation between functional gain and insertion gain
CN103983345A (en) Single-frequency tone acoustic signal automatic monitoring method based on human auditory characteristics
US5402495A (en) Method and apparatus for evaluating audio distortion
US9200944B2 (en) Method of objectively determining subjective properties of a binaural sound signal
US5944672A (en) Digital hearing impairment simulation method and hearing aid evaluation method using the same
Churcher et al. The measurement of noise, with special reference to engineering noise problems
CN113613121B (en) Method and device for obtaining sound pressure level of earphone and earphone
Al-Saleh How loud should the sound level be in the mosque?
Bauer et al. A loudness-level monitor for broadcasting
JP2001128296A (en) Hearing aid
US20140153754A1 (en) Otic sensory detection and protection system, device and method
JPH08298418A (en) Sound quality adjustment device
JPH10294997A (en) Processing circuit for voice signal and check device
Jamieson et al. Electroacoustic evaluation of assistive hearing devices
Rajala et al. Equal Annoyance Contours at Frequencies 4-1000 Hz

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020506

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KURAKATA, KENJI

Owner name: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE

A4 Supplementary search report drawn up and despatched

Effective date: 20071115

17Q First examination report despatched

Effective date: 20080424

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20131001